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Starting fly 3D helicopter from ground with upside down!
Time: 2006-11-05 13:30:42 

I was very surprised how hard it was to fly 3D helicopter indoors ! but I have a wonderful way to fly upside down 3D Honeybee 2 micro-helicopter in the office  and inverse flight  from the ground ! Hard ? or Not ? detail.Video.

需要一台Esky-3d直升机,一个用来作为倒飞脚架用途的Dragonfly-22直升机带尾管机架,及以下图内一些工具、零件。
Let's prepare an extra frame and some tools and parts for the Honeybee 2 helicopter as below:
先拆下Esky-3d小电直上端的一颗螺丝,正是巧妙地利用了该螺丝孔来对接倒飞脚架:
Take off the screw on the top of the Honeybee 2:
在Esky-3d小电直尾端该位置打孔直径2mm,同样要在22#机的尾管相应位置也钻同样的孔:
Drill on the end of the tail boom of the Honeybee 2:
倒飞脚架就利用了Dragongfly-22#小电直的机身和尾管,尾管尾端部也要上下各钻2mm直径的孔。请注意该倒飞脚架上面的主轴孔必须是含有原配的上下二颗内径3mm的轴承的:
The extra frame is a landing gear from Walkera Dragonfly 22#. It is important that there are 2 bearings in the principal axis of the landing gear:
还需要几个小零件,一根长螺丝钉(长约40mm,外径约2.8mm),2个垫片,一个定位锁头,一根直径2mm的碳纤杆:
Some small parts :
22#机架与Esky小电直上下用长螺丝对接:
Connect the Honeybee 2 and the landing gear device of the Walkera Dragonfly 22#:
安装尾支架,用细碳纤将上下两个尾杆连接起来
Connect the Honeybee 2's tail boom and the Dragonfly 22#'s tail boom with a thin carbon fiber pole:
22#机架的尾端也要有一根尾支撑杆:
Tail boom bracket for the Dragonfly 22#:
看!就这么简单!大功告成!从地面正常起飞当然不受影响:
Look ! No problem for normal flight:
倒飞时的状态是下面这样的。原则上来说,用这种方法,适用于任何3D直升机的改装,对于旋翼头上面没有螺丝孔的3D电直(例如Zoom400和Trex450等)咋办?在该直升机的旋翼头上面钻它一个孔不就成!(或者在旋翼头上面粘接固定一个螺母),将一个适当长度的螺丝作为主轴,将类似的、大小适合的一个倒飞起落架与直升机连接起来既可:
So wonderful way to fly upside down the Honeybee 2. Do you like try in this way? 
给倒飞起落架再装一个训练架,看起来也是一个不错的选择哟: 
This is also a good idea, add a training gear on the landing gear:
中国的航模爱好者:小电直的3D时代已经到来!3D倒飞起飞!从此开始!从地面开始!从客厅开始吧!
But I would like show off this idea by myself .... 3D indoors, hard or not ?

Analogously, this is only an example, you can do it with your helicopter, such as Zoom400, Trex450 etc., just drill a hole on the rotor head of your helicopter, then, connect a analogous landing gear with the helicopter each other by a screw:

 

 


 

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